Knockdown stove.



L. B. & N. GOLDBERG.

KNOOKDOWN STOVE.

APPLICATION FILED FEB. 7, 1913. 1, 1 06,555. Patented Aug. 11, 1914.

2 SHEETS'SHEET 1.

0 if 5'. 4 4 M a 9d & .5 57 9% Z 3 THE NORRIS FETERS'CQ. PHDTO-LITHa. WASHINGHN. D. C.

L. B. & N. GOLDBERG.

KNOGKDOWN STOVE.

APPLICATION FILED r1213. 7, 1913.

1,106,555. Patented Aug. 11,1914.

2 SHEETS-SHEET 2.

W W mt m THE NORRIS PETERS c0, PHOTD-LJTHO" WASHINGMN, D. C,

UNITED STATES PATENT onnron.

KNOCKDOWN STOVE.

Specification of Letters Patent.

Application filed February 7,1913. Serial No. 746,777.

To all whom it may concern:

Be it known that we, LOUIS B. GOLDBERG and NATHAN G LDBERG, citizens of the United States, residing in the city and county of Denver and State of Colorado, have invented certain new and useful 1mprovements in Knockdown Stoves; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in knock down stoves and has for one of its objects the provision of a joint between members arranged at right angles to each other, which joints shall be rigid and secure and yet capable of being assembled very quickly.

Another object of theinvention is the pro-,

vision of a removable grate with means for preventing-lateral motion of the same.

A further object is to provide a removable baffle plate between the grate and oven.

Stillanother object-is to provide means for securing brackets upon the walls of the stove without the use of rivets.

Other objects will appear hereinafter as we proceed with the description of that embodiment of the invention, which, for the purposes of the present application, isillustrated in the accompanying drawings, in which:

' vFigure 1 is a front elevation of our improved stove. Fig. 2 is a horizontal section upon. theline 22, Fig. 1.v Fig. 3 is a central vertical longitudinal section. Fig. 4: is a cross section upon theline 44, Fig. 3.

Figs. 5 and 6 are detail sectional views illustrating the manner of setting up the oven. Fig. 7 is a fragmental detail partly in section, illustrating the application of one of the fastening elements. Fig. 8 is a section taken upon the line 8-8, Fig. 3. Fig. 9 is upon itself, the fold 8 being turned inwardly and the edge 9 being bent up at right angles to the base 5. The grooveis narrow at its mouth, that is, between the edges of' the parts 8 and 9, it being at this point only slightly wider than the thickness of the metal. As clearly indicated in Fig. 2, the bent edges of the base are beveled off at the corners 10 in order to make smooth joints.

The front and rear side plates 12and 13 have flanges 14; and 15 bent outwardly therefrom at right angles at the top and bottom edges, respectively. The end edges of these plates are merely bent over at 16 to form rounded edges and to increase the stiffness of the metal at these places. Theend plates 17 have top and bottom flanges 18 and 19, the flange 18 being doubled upon itself for purposes of rigidity. The flanges 18 also extend inwardly instead of outwardly, as is the case with the flanges 14, 15 and 19. The side edges of the plates 17 have U-shaped grooves into which the side edges of the plates 12 and 13 fit, the grooves being formed between folds 20 and the parallel edges 21 of the plates.

The top or cover 22, is provided with holes for pots and kettles, the edges of the metal being bent to form flanges 23. Lids, 24 may be supplied for the holes. The cover 22 also.

has an opening around which is fixed a collar 25 for the reception of a pipe (not shown).

One side edge of the cover 22 is bent to form a groove similar to the grooves upon the edges of the base and the parts forming which are similarly numbered. (See Fig. 4c.) The other three edges of the cover are provided with U-shaped grooves formed by the fold 26 and the parallel flange 27. The width of these latter grooves is just suflicient to accommodate the flanges 14: and 18.

Thefold 26, extending over the flange 14 has a longitudinally extending slot 28 for the reception of an arm 29 upon a rock shaft 30 which is rotatably mounted in a bracket 31, the rock shaft having an additional arm 32 at the opposite extremity for convenience in operation. The bracket 31 is formed of astrip of metal bent near its middle point to form in conjunction with the stove wall a journal, the bracket being attached to the stove wall by the passage of its extremities through slots in the wall, said extremities being then bent back against the wall to clench the bracket in place as illustrated in Patented Angli, 1914i.

detail in Fig. 9. Similar locking devices 33 are used to clamp the cover to the end walls or plates and other devices 34 for locking the side and end plates to each other. In

the latter cases, however, the locking fingers dojn'ot' pass through slots, but instead they extend around corners in a manner that will be readily understood from the inspection of the drawings, Fig. 7 in particular.

' Upon theside 13 of our improved stove,

we attaclnby means of rivets 35,'a plate 36 p which forms a support for one side ofthe oven andv upon the opposite wall about the opening for the door 37 we secure aplate 38 the middle portionof which is cut away to correspond with the door opening, the

plate'38 being clenched in place by the bent over edges'39 on the side plate 12 around the door opening. The plates 36 and'38 are bothbent at their side and bottomedges to form grooves 40.

{ pending end flanges 42 adapted 'to rest in the The bottom'plate 41 of the oven has debottom grooves and grooves 43 upon its side edges, the latter grooves being precisely identical with those upon the base f the V sto'i' ee'xcept that the folds 44 are outside and perpendicular to the plate 41 and the flanges'45inclined outwardly. The sides of 'wardly bent flanges-48.. Upon the side edges are inwardly bent flanges 49 engagingthe '85 the oven are formed of plates 46 provided at their top. edges with outwardly bent.

flanges 47 and at their bottomfedges with inside grooves 40 of the plates36 and 38. f Th'e "cover 50 of theoven has side grooves which are exactly similar to the corresponding grooves upon the stove cover and th erefore need not be further. described. The

able thereon, being controlled by a bar 53;

which slides through an opening 54 in; the

""end plate 17. The damper, when'in'the position illustrated in Fig. 3 causes the draft to drive the heated air around the oven as indicated by the arrows, but when the damper 52 is drawn to the extreme right; as indicated dottedlines in Fig. 1,"the1 draft is more direct passing over the oven.

Oppositely disposed upon the side, plates 12, and13'of the oven and belowthe open- 7 ing for ,the fuel doorf55, are supporting brackets '56 and 57 which are formed of strips of metal bent into U-shape and pro vided with flat portions 58 (see Fig. '8); constituting bearing surfaces for resting against the inner, sides of the stove Walls,

the extremities of the strips being bent at right angles, passed through slots in the stove walls, and bent over as indicated at 59.

Upon these supporting brackets we re-.

movable grate-formed preferably =two sec tions 60 and 61 afterwhich pins are passed through thegrate sect'ions'and mm). it

the smaller of these supporting brackets thereby preventing any lateral movement of; the grate sectionsupon the brackets.

Upon the base 5 of th e stove, we mount a transversely extendin'g strip of metal 63 which is bent .to form agroove 64 similar in plate 41 of the oven. Within the groove 64" we mount a vertical.b'aiiie' plate 65 which ex- 1 76 shape to the grooves 43 upon the bottom tends entirely across the stove directing the,

air upwardly through the grate bars. V

In assembling our improved knockdown I stove, the bottom flanges '15 iupon'theside w plates 12 and 13 are caused to enter the side grooves in the base plate, the side plates he ing held horizontally during thenperatiou' and the side plates are thenrockedupwardly' to the vertical position in which the'flanges 9 upon'the base plate'5 a'ssist in supporting them. The end plates 17 are then joined to the base 5 in like manner, the grooves 21i receiving the end edges of the side plates as the end plates llfare folded upwardly,

After the sides andends are in the vertical position, the fastening's' 34 are turned to 'lock' them in said" positionss' Next the; angular flange upon the bottom ofthe bafiie plalte 65 is dropped'into the groove 64 and thebaflle 1 plate raised to its vertical'positionafter: I which the grate sectionsar'e placed upon the 3..

brackets 56 and 57' and the pins .62 put in.

abutting against thebafiie' plate 65 and lockingit against Fig. 3. r r v The oven is assembled next;,;Its'bottomplate 41 is droppedintlo' position withthe' flanges 42 ext-ending into the grooves 40;

movement toward theleft' in upon the end plates 36 and38,after which i the side plates 46 are joined to the bottom;

plate 41, the consecutive operations being" clearly illustrated in Figs. 5fand 6.},The cover 50 of the oven isnext held-ginfa ver-r tical position and moveduntil its triangular shaped'groove has received the flange '47 upon one 'ofjthe, side plates 46 when the;

cover5O may be'rocked downwardly and locked in position by the fastening 29; "The 1 bar 53 of thedamper plate 52 is then passed through the openin 54m 0 ndg u of the stove after whic the cover t me stove is ready to be placedi i-position. Injplacing the cover 22 exactlythesaineprocedure must be followed, as in placing IthefcOver 5O upon the oven, but in'addition, i'r'asten "V ings 33 are employed at each end of the stove for assist-ing in holding the cover-in.

position.

The shape of the groovesupon the edges of the base plate 5 and the similar grooves used elsewherein the construction is 'a very 1 .1001 poslti'on, the forward edgeof the gratei'then v important feature of our invention, atten- "tion being called particularly to the fact that the mouth of the groove is only wide enough to admit the flange upon a cooperating plate when thetwo plates are parallel to each other, thereby eliminating all possibility of the separation of the plates after they have been rocked to their operative positions. Attention is also called to the fact that one side of the groove is perpendicular to the plate upon which it is formed and from the edge of the member, the opening of the groove being adjacent said perpendicular side, and only slightly wider than the thickness of the metal employed, and a second member provided at one edge with a flange bent at right angles to the main portion of the member, said flange being approximately the same width as the widest part of the groove, said members being adapted to be joined only by the insertion of the flange in the groove when the members are substantially parallel to each other after which they may be rocked to positions at right angles to each other.

2. In a knock down stove, a base, a baffle plate, a hinge connection between said base and plate, an abutment upon the base arranged to prevent the hinging of said plate in one direction beyond the vertical position and a removable grate adapted when in the adjusted position to bear against the opposite side of the plate and hold it in the vertical position.

3. In a knock down stove, a base provided with an upwardly opening groove on each edge side and end plates, each plate having a flange upon its lower edge adapted to be inserted into the corresponding one of said grooves, only when the plate is in approximately a horizontal position, said grooves and flanges being shaped to permit the rocking of said plates to the vertical position, and readily releasable means applied to the upper edge of the plates for locking the latter in the vertical position.

4. In a knock down stove, a base provided with upwardly and inwardly opening grooves on each edge, side and end plates, each plate having an angular flange upon its lower edge adapted to be inserted into the corresponding one of said grooves only when the plate is in an approximately horizontal position extending away from the base, said grooves and flanges being shaped to permit the rocking of said plates to the vertical position, readily releasable means applied to the upper edge of the plates for locking the latter in said position, and means for interlocking the side and end plates when in the vertical position.

In testimony whereof we afiix our signatures in presence of two witnesses.

Witnesses:

CEoELIA BUERGER, Orro E. HoDDIoK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

